Oregon drug testing laws for employers: pre-employment testing rules (2026)

Oregon has no general statute limiting when private employers may drug test job applicants, so testing under a written policy is allowed. Two statutes control how: an on-site screening facility needs an Oregon Health Authority permit and must have any positive confirmed by a certified clinical laboratory before using it to deny employment (ORS 438.435), and breathalyzer tests are unlawful except with consent or reasonable grounds, at the employer's cost (ORS 659A.300). Cannabis is legal for adults, but Oregon's cannabis laws say they do not affect employment law or require workplace accommodation, as of October 2026.

Oregon drug testing rules at a glance

Does Oregon have a drug testing law for employers?

Not a general one. Oregon does not set a notice form, testing timeline, retest right or list of permitted reasons for private-employer drug tests the way Minnesota or Vermont do. That leaves your written policy to set those terms, with two statutes setting the guardrails: one on how instant, on-site drug screens are run, and one on alcohol testing. Because Oregon gives applicants no statutory right to explain a result, build one into your policy: let the candidate report prescriptions before collection and use a medical review officer to review positives.

What are Oregon's rules for on-site drug screening?

Instant cups and cards are where Oregon's law is most specific. ORS 438.435 directs the Oregon Health Authority to set standards for "substances of abuse on-site screening facilities" that do only initial testing. An entity using these tests must pay a yearly filing fee and file a permit application that gives its name, address and a contact at each on-site facility, and certifies that:

1. the tests are administered according to the federal Food and Drug Administration package insert;
2. the tests are administered according to the manufacturer's instructions;
3. custody chain procedures are followed;
4. operators are trained in the tests by the manufacturer; and
5. if a positive result "is to be used to deny or deprive any person of employment or any benefit, or may otherwise result in adverse employment action," the same specimen is submitted to a clinical laboratory certified under ORS 438.040, or an equivalent out-of-state facility, "and the presence of a substance of abuse confirmed prior to release of the on-site test result."

Subsection (4) repeats the point: a confirmatory test in a certified clinical laboratory is required "if the results are to be used to deprive or deny any person of any employment." So in Oregon an unconfirmed instant-test positive cannot be the reason you withdraw an offer. If you send applicants to a collection site that ships every specimen to a laboratory, no on-site screen takes place; if the site runs instant tests itself, ask your vendor to confirm in the contract that it holds the permit and sends positives for laboratory confirmation.

Can Oregon employers test applicants for alcohol?

Only within ORS 659A.300. It is an unlawful employment practice to subject "any employee or prospective employee to any breathalyzer test," polygraph examination, psychological stress test, genetic test or brain-wave test, except as the section allows. Subsection (4) allows a breathalyzer test if the person consents, and if the employer "has reasonable grounds to believe that the individual is under the influence of intoxicating liquor," it may require a blood alcohol content test by a third party or a breathalyzer test as a condition of employment. "The employer shall not require the employee to pay the cost of administering any such test." A routine pre-employment alcohol test should therefore rest on the candidate's written consent.

What does Oregon say about cannabis and hiring?

• Adult-use cannabis is legal and regulated by the Oregon Liquor and Cannabis Commission, but ORS 475C.013 says ORS 475C.005 to 475C.525 may not be construed "to amend or affect state or federal law pertaining to employment matters," and does not stop a federal grant recipient or federal contractor from prohibiting marijuana use to the extent its federal requirements demand.
• Medical cannabis is run by the Oregon Health Authority's Oregon Medical Marijuana Program. ORS 475C.780(2) says nothing in the medical law requires "an employer to accommodate the medical use of marijuana in the workplace."
• No off-duty cannabis protection. ORS 659A.315 makes it unlawful to require applicants to refrain from "using lawful tobacco products during nonworking hours," except for a bona fide occupational requirement. It does not mention cannabis, and we found no Oregon statute protecting off-duty cannabis use.

A THC-positive applicant in Oregon can therefore be treated under your policy like any other confirmed positive. Disability law can still apply to the underlying condition, so keep the decision about the test result, not the diagnosis.

Which federal rules still apply in Oregon?

• DOT-regulated roles follow 49 CFR Part 40; a commercial driver needs a verified negative pre-employment result before the first safety-sensitive function (49 CFR 382.301).
• Rescheduling. The April 28, 2026 order moved FDA-approved and state-medical-license marijuana to Schedule III; it does not cover Oregon's adult-use sales. DOT's Part 40 guidance (May 15, 2026) says an Oregon medical marijuana card still cannot make a DOT positive negative, and 49 CFR 40.151(e) and (f) bar accepting a physician recommendation or a hemp or CBD product claim as a medical explanation.
• Federal contractors need the policy statement and awareness program in the FAR Drug-Free Workplace clause; ORS 475C.013 expressly leaves room for that.
• The ADA: see pre-employment medical exams under the ADA.

What should staffing agencies placing workers in Oregon do?

• Check your instant tests. If you screen candidates with cups or cards at your branch, the permit, certification and lab-confirmation rules in ORS 438.435 apply to you as the entity using the test.
• Never act on an unconfirmed positive. Hold the assignment decision until the certified lab confirms, and tell the client the same rule applies to any test it runs itself.
• Get written consent for alcohol tests and pay for them, under ORS 659A.300.
• Agree whose policy governs cannabis positives, especially for clients with federal contracts or DOT-regulated drivers.
• Licensing and the rest of hiring: see Oregon staffing agency licensing, Oregon ban-the-box rules and hiring employees in Oregon.

A checklist before you test a candidate in Oregon

1. Adopt a written policy that sets when you test, what you test for and how candidates report prescriptions.
2. If you use on-site screens, file the OHA permit application, follow the package insert and train operators.
3. Send every positive you might act on to a certified clinical laboratory for confirmation first.
4. Test for alcohol only with written consent or reasonable grounds, and pay the cost.
5. Decide and write down how you treat THC positives, including for federal contract and DOT roles.

Draft the policy from the pre-employment drug testing policy template, and compare states in drug testing laws in hiring.